Waveguide Sizes A waveguide is an electromagnetic feed line that is used for high frequency signals. Waveguides conduct microwave energy at lower loss than coaxial cables and are used in microwave communications, radars and other high frequency applications. Figure 72 - Frequency Wavelength. Line Calc. This section of the calculator has functions for the characterization of Rectangular and Cylindrical Cavities, Coax, Microstrip, Stripline, and Waveguide. By checking the PreDef Waveguide checkbox the user gets the calculations for all the However, even spreadsheets have Bessel function (J n) capability nowadays, so determining cutoff frequencies, field strengths, and any of the other standard values associated with circular waveguide can be done relatively easily. The formulas below represent those quantities most commonly needed for circular waveguides. Where a and b are the dimensions of the waveguide, which has already been specified, and since the medium is air the permittivity is 1. The guided wavelength, which is defined as the distance between the two equal phase planes along the waveguide, is given as: The propagation constant gamma is given as: Where, Circular Waveguide cutoff frequency Equation. Following equation or formula is used for circular waveguide cutoff frequency calculator. Useful converters and calculators. Following is the list of useful converters and calculators. dBm to Watt converter Stripline Impedance calculator Microstrip line impedance Antenna G/T Noise temp. to NF Antenna Design and RF Layout Guidelines www.cypress.com Document No. 001-91445 Rev. *H 5 2. PCB Antenna: This is a trace drawn on the PCB.This can bea straight trace inverted F, -type trace, meandered trace, circular trace, or a curve withwiggles depending on the antenna type and space constraints . 1. INTRODUCTION Thewavesinacylindricalwaveguidearefoundfromsolutionsofthetwo dimensionaldifferentialequation V2u+k2u= (1 Based on FWG structure, two types of folde